Installation package for Windows for the U12.
The U12 Library is used for programming with the U12 device. Find example code in several languages below. If you can't find example code for a particular language, the user's guide is a good resource to get you started.
This is the installation package for Mac OS X for the U12.
This is the installation package for Linux for the U12.
Looking for software for the U3, U6, or UE9?
A few people have had an installation problem with the LabJack U12 on Windows 98 Second Edition (LJtest passes the first few tests and fails the rest). It appears that it is possible for Win 98 SE to have the first edition USB drivers installed. Download this zip, and read the readme.txt file contained within. This has fixed the problem every time. 6/17/2002, 38KB, Windows 98SE
The attached U12DriverFilesOnly-v122.zip file is the barebones package. Customers who want to bundle the U12 driver into a different installer will use this barebones version.
The high-level U12 driver for Linux and Mac OS X. The ljacklm driver is a port of the ljackuw Windows driver and contains the same functions documented in Section 4 of the U12 User's Guide, excluding Windows specific functions such as GetWinVersion. The driver requires the Exodriver version 2.05 or above before installation. The Exodriver web page and download can be found here:
The ljacklm.zip package contains the ljacklm driver's source code, installation instructions and C example code. For more details on the driver and the contents of the package, please refer to the README in the zip.
For macOS users: The ljacklm_mac_installer.zip package contains an installer for convenience. It installs the ljacklm driver, header file and all the software ljacklm requires such as the Exodriver. Download the ljacklm source code for the C examples.
macOS 10.15.4 and later is not supported: ljacklm relies on Apple kernel extensions, which are deprecated in 10.15.4. As an alternative, LabJack T-series software will maintain support for macOS 10.15.4 and later.
